Hi & welcome to CD Freaks.
Depends what motherboard you've got. My Gigabyte board has 4 IDE channels , 2 being for raid.
If I set these to ATA in the BIOS & try to use them for optical devices they just won't burn successfully.
If I use them for HDDs then the system crawls when accessing them on either of these 2 channels.
So I finished up with a PCI IDE Controller & put HDDs on that & the boot HDD & opticals on the first primary & secondary channels & ignored the second set.